session 2 4SO21CS039 CIANA

Dockerfile

@@ -0,0 +1 @@
+

myworld/docker-compose.yml

@@ -21,7 +21,7 @@ services:
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=123456
    ports:
-     - '5446:5432'
+     - '5430:5432'
    volumes:
      - db:/var/lib/postgresql/data
 volumes:

myworld/dockerfiles/Dockerfile

@@ -7,7 +7,7 @@ RUN apk update && \
 # Install requirements
 RUN pip install --upgrade pip
 RUN pip install Django psycopg2==2.9.3
-# Create directories
+# Create directories  
 RUN mkdir -p /root/workspace/src
 COPY ./  /root/workspace/site
 # Switch to project directory

myworld/members/admin.py

@@ -1,9 +1,13 @@
 from django.contrib import admin
 from .models import Students
+from .models import Employees
 
 class DjStudentAdmin(admin.ModelAdmin):
     list_display = ("first_name", "last_name", "address", "roll_number", "mobile", "branch")
     list_filter = ("branch",)
-
+class EmployeeAdmin(admin.ModelAdmin):
+    list_display = ("first_name", "last_name", "address", "emp_id" , "salary")
+
 # Register your models here.
-admin.site.register(Students, DjStudentAdmin)
+admin.site.register(Students, DjStudentAdmin)
+admin.site.register(Employees,EmployeeAdmin)

myworld/members/migrations/0003_students_branch_alter_students_id.py

@@ -0,0 +1,23 @@
+# Generated by Django 5.1.1 on 2024-10-04 08:42
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('members', '0002_students_delete_members'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='students',
+            name='branch',
+            field=models.CharField(choices=[('BA', 'BA'), ('B.COM', 'B.COM'), ('MBA', 'MBA'), ('CA', 'CA')], max_length=10, null=True),
+        ),
+        migrations.AlterField(
+            model_name='students',
+            name='id',
+            field=models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID'),
+        ),
+    ]

myworld/members/migrations/0004_employees.py

@@ -0,0 +1,23 @@
+# Generated by Django 5.1.1 on 2024-10-04 09:48
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('members', '0003_students_branch_alter_students_id'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Employees',
+            fields=[
+                ('first_name', models.CharField(max_length=200)),
+                ('last_name', models.CharField(max_length=200)),
+                ('address', models.CharField(max_length=200)),
+                ('emp_id', models.IntegerField(max_length=10, primary_key=True, serialize=False)),
+                ('salary', models.DecimalField(decimal_places=2, max_digits=10)),
+            ],
+        ),
+    ]

myworld/members/models.py

@@ -14,7 +14,16 @@ class Students(models.Model):
     address = models.CharField(max_length=200)
     roll_number = models.IntegerField()
     mobile = models.CharField(max_length=10)
-    branch = models.CharField(max_length=10, choices=BRANCH_CHOICES)
+    branch = models.CharField(max_length=10, choices=BRANCH_CHOICES,null=True)
+
+    def __str__(self):
+        return self.first_name + " " + self.last_name
+class Employees(models.Model):
+    first_name = models.CharField(max_length=200)
+    last_name = models.CharField(max_length=200)
+    address = models.CharField(max_length=200)
+    emp_id = models.IntegerField(max_length=10, primary_key= True)
+    salary = models.DecimalField(max_digits=10, decimal_places=2)
 
     def __str__(self):
         return self.first_name + " " + self.last_name

myworld/members/urls.py

@@ -5,4 +5,7 @@
     path('rest/student/<int:rolno>', views.StudentView.as_view()),
     path('rest/student/', views.StudentView.as_view()),
     path('rest/student/<str:branch>', views.StudentView.as_view()),
+    path('rest/employee/<int:emp_id>', views.EmployeeView.as_view()),
+    path('rest/employee/', views.EmployeeView.as_view()),
+
 ]

myworld/members/views.py

@@ -1,10 +1,11 @@
+import json
 from django.views import View
-from .models import Students
 from django.http import JsonResponse
 from django.views.decorators.csrf import csrf_exempt
 from django.utils.decorators import method_decorator
+from .models import Students, Employees
 
-
+# View to handle Students API
 @method_decorator(csrf_exempt, name='dispatch')
 class StudentView(View):
 
@@ -15,30 +16,115 @@ def get(self, request, rolno=None, branch=None):
                 student_model_list = Students.objects.filter(roll_number=rolno)
             elif branch:
                 student_model_list = Students.objects.filter(branch=branch)
+            else:
+                student_model_list = Students.objects.all()
         except Students.DoesNotExist:
             return JsonResponse({'status': 'failed', "students": None}, status=400)
+
         students = []
         for student in student_model_list:
             data = {
-                "first_name" : student.first_name,
+                "first_name": student.first_name,
                 "last_name": student.last_name,
                 "address": student.address,
                 "roll_number": student.roll_number,
                 "mobile": student.mobile,
                 "branch": student.branch
             }
             students.append(data)
+
         return JsonResponse({'status': 'success', "students": students}, status=200)
 
     def post(self, request):
-        if not request.POST.get('first_name') or not request.POST.get('last_name') or not request.POST.get('address') or  not request.POST.get('roll_number') or not request.POST.get('mobile'):
-            return JsonResponse({'status': 'failed', "message" : "all fields required"}, status=500)
-
-        Students.objects.create(
-            first_name= request.POST.get('first_name'),
-            last_name= request.POST.get('last_name'),
-            address= request.POST.get('address'),
-            roll_number= request.POST.get('roll_number'),
-            mobile= request.POST.get('mobile'),
-            branch= request.POST.get('branch'))
-        return JsonResponse({'status': 'sucess'}, status=200)
+        try:
+            data = json.loads(request.body)
+            required_fields = ['first_name', 'last_name', 'address', 'roll_number', 'mobile']
+            for field in required_fields:
+                if not data.get(field):
+                    return JsonResponse({'status': 'failed', "message": f"{field} is required"}, status=500)
+
+            Students.objects.create(
+                first_name=data.get('first_name'),
+                last_name=data.get('last_name'),
+                address=data.get('address'),
+                roll_number=data.get('roll_number'),
+                mobile=data.get('mobile'),
+                branch=data.get('branch')
+            )
+            return JsonResponse({'status': 'success', 'message': 'Student added successfully'}, status=200)
+
+        except json.JSONDecodeError:
+            return JsonResponse({'status': 'failed', "message": "Invalid JSON data"}, status=400)
+
+
+# View to handle Employees API
+@method_decorator(csrf_exempt, name='dispatch')
+class EmployeeView(View):
+
+    def get(self, request, emp_id=None):
+        employee_list = []
+        try:
+            if emp_id:
+                employee_list = Employees.objects.filter(emp_id=emp_id)
+            else:
+                employee_list = Employees.objects.all()
+        except Employees.DoesNotExist:
+            return JsonResponse({'status': 'failed', "employees": None}, status=400)
+
+        employees = []
+        for employee in employee_list:
+            data = {
+                "first_name": employee.first_name,
+                "last_name": employee.last_name,
+                "address": employee.address,
+                "emp_id": employee.emp_id,
+                "salary": employee.salary
+            }
+            employees.append(data)
+
+        return JsonResponse({'status': 'success', "employees": employees}, status=200)
+
+    def post(self, request):
+        try:
+            data = json.loads(request.body)
+            required_fields = ['first_name', 'last_name', 'address', 'emp_id', 'salary']
+            for field in required_fields:
+                if not data.get(field):
+                    return JsonResponse({'status': 'failed', "message": f"{field} is required"}, status=500)
+
+            Employees.objects.create(
+                first_name=data.get('first_name'),
+                last_name=data.get('last_name'),
+                address=data.get('address'),
+                emp_id=data.get('emp_id'),
+                salary=data.get('salary')
+            )
+            return JsonResponse({'status': 'success', 'message': 'Employee added successfully'}, status=200)
+
+        except json.JSONDecodeError:
+            return JsonResponse({'status': 'failed', "message": "Invalid JSON data"}, status=400)
+
+    def delete(self, request, emp_id):
+        try:
+            employee = Employees.objects.get(emp_id=emp_id)
+            employee.delete()
+            return JsonResponse({'status': 'success', 'message': 'Employee deleted successfully'}, status=200)
+        except Employees.DoesNotExist:
+            return JsonResponse({'status': 'failed', 'message': 'Employee not found'}, status=404)
+
+    def patch(self, request, emp_id):
+        try:
+            employee = Employees.objects.get(emp_id=emp_id)
+            data = json.loads(request.body)
+
+            # Update the salary if provided in the request
+            if 'salary' in data:
+                employee.salary = data['salary']
+                employee.save()
+                return JsonResponse({'status': 'success', 'message': 'Salary updated successfully'}, status=200)
+
+            return JsonResponse({'status': 'failed', 'message': 'No fields to update'}, status=400)
+        except Employees.DoesNotExist:
+            return JsonResponse({'status': 'failed', 'message': 'Employee not found'}, status=404)
+        except json.JSONDecodeError:
+            return JsonResponse({'status': 'failed', "message": "Invalid JSON data"}, status=400)

myworld/myworld/settings.py

@@ -11,6 +11,11 @@
 """
 
 from pathlib import Path
+import os
+
+# settings.py
+
+DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
 
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve(strict=True).parent.parent
@@ -85,6 +90,12 @@
     }
 }
 
+# DATABASES = {
+#     'default': {
+#         'ENGINE': 'django.db.backends.sqlite3',
+#         'NAME': os.path.join('BASE_DIR' , 'db.sqlite3'),
+#     }
+# }
 # Password validation
 # https://docs.djangoproject.com/en/3.1/ref/settings/#auth-password-validators
 

myworld/test1/manage.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+"""Django's command-line utility for administrative tasks."""
+import os
+import sys
+
+
+def main():
+    """Run administrative tasks."""
+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'test1.settings')
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError as exc:
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            "available on your PYTHONPATH environment variable? Did you "
+            "forget to activate a virtual environment?"
+        ) from exc
+    execute_from_command_line(sys.argv)
+
+
+if __name__ == '__main__':
+    main()

myworld/test1/test1/asgi.py

@@ -0,0 +1,16 @@
+"""
+ASGI config for test1 project.
+
+It exposes the ASGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/5.1/howto/deployment/asgi/
+"""
+
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'test1.settings')
+
+application = get_asgi_application()